Showing posts with label insect. Show all posts
Showing posts with label insect. Show all posts
Thursday, June 21, 2018
Friday, October 13, 2017
Friday, July 21, 2017
Monday, July 17, 2017
Sunday, September 25, 2016
Wednesday, August 17, 2016
Wednesday, May 18, 2016
Friday, September 18, 2015
Friday, July 3, 2015
Damselfly of Extraordinary Color
| Characteristic | Dragonfly | Damselfly |
| Eyes | most have eyes that touch, or nearly touch, at the top of the head | eyes are clearly separated, usually appearing to each side of the head |
| Body | usually stocky | usually long and slender |
| Wing Shape | dissimilar wing pairs, with hind wings broader at the base | all wings similar in shape |
| Position at Rest | wings held open, horizontally or downwards | wings held closed, usually over abdomen |
| Discal Cell | divided into triangles | undivided, quadrilateral |
| Male Appendages | pair of superior anal appendages, single inferior appendage | two pairs of anal appendages |
| Female Appendages | most have vestigial ovipositors | functional ovipositors |
| Larvae | breathe through rectal tracheal gills; stocky bodies | breathe through caudal gills; slender bodies |
Tuesday, June 9, 2015
Saturday, June 6, 2015
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